The air duct cloth used in coal mines is a pipe used for ventilation underground. Coal mine air ducts generally use PVC coated cloth. There are standards for coal mine ventilation ducts, so what is the thickness standard for coal mine ventilation duct cloth? Is thicker better? Many people believe that thick air duct fabric is of good quality, isn't it?
Coal mine ventilation ducts are used for underground ventilation in coal mines. Usually, the mining air duct we refer to refers to the positive pressure air duct used for positive pressure ventilation in coal mines, which is made of PVC coated cloth and processed. Many times, buyers believe that the thickness of the wind duct fabric determines the quality of the wind duct. In fact, this is a misunderstanding.
There is a standard for the thickness of mining ventilation duct cloth, which is less than or equal to 0.8mm. The thickness of the wind duct cloth is achieved through internal weaving and surface coating. The thickness of fabrics varies greatly, but the surface coating of different fabrics is' different '.
For high-strength filament air ducts and polyester filament air ducts, the polyester air duct is slightly thicker after coating. So can it be said that the quality of high-strength steel wire ducts is poor? On the contrary, the tearing force of high-strength filament air ducts cannot be compared to polyester. The handle may be suitable for polyester fibers, but using high-strength filament air ducts is a huge victory.
The ratio of resin and stone powder in the coating of the wind duct fabric is different, and the coating thickness is also different. In many cases, the stone powder of very thick wind duct cloth increases. When a large amount of stone powder is used, not only is the price low, but also the adhesion of the air duct heat seal is low. The thickness of the air duct cloth with more resin may be slightly lower, but its adhesion and wear resistance increase.
The air duct and fan are used together for mine ventilation. The power of the fan determines the strength of the duct cloth we use to make the duct. Therefore, it depends on the strength and tensile strength of the wind duct fabric, rather than the thickness of the wind duct fabric. Even if the thickness is thick, the strength of the air duct fabric is not enough, and the fan is prone to cracking when blowing. Therefore, when choosing coal mine air duct fabric, thickness should not be blindly pursued. A thick air duct has nothing but weight. We want to purchase high-strength and appropriately thick air duct cloth. This type of air duct not only has high anti slip strength and long service life, but also is lightweight, easy to transport, install, and use.